docs: def setAuthLevel(self, level_uri, level, alias=None):
          """Set the value for the given auth level type.
  
          @param level: string representation of an authentication level
              valid for level_uri
  
          @param alias: An optional namespace alias for the given auth
              level URI. May be omitted if the alias is not
              significant. The library will use a reasonable default for
              widely-used auth level types.
          """
          self._addAuthLevelAlias(level_uri, alias)
          self.auth_levels[level_uri] = level